Air-cushion.



No. 638,374. Patented Dec. 5, |899.

R. ARoNsTEm. AIR CUSHION.

(Application led Aug. 3, 1898.)

2 Sheas-Sheet l.

INVENTOR xsf No..638,374. Patented Dec. 5, |899. R. ARUNSTEIN.

AIR CUSHION.

(Application filed Aug. 3, 189B.)

`(No Model.) 2 Sheets-Sheet 2.

r AIR Rmx-.aval

f for the vulcanization'.

1ers .d .d prevent the mantle from spreading: in

nir esrnrns RICHARD Anon-STEIN, -O-r,eOLnmnLDj COLORADO.

IAIRFCUSHIN.

'SPEQIICPION forming part of Letters Patent No. 638.37%, dated December 5, 1399.

' l Application fina August 3,1398. serial No. 687,666. (Nomom To all whom, 'Lt may concern:

Beit known that I, RIOHARDARONSTEIN, a citizen of the United States, residing at Goldield, in the county of Teller, State of Colorado, have invented anew and useful Improvement in Air-Cushions, of which the following is a specification.

The object Of this invention is to provide ,all classes of wheeled vehicles with a set of airc'i1shions placed between the axle of the wheel and the seat for the purpose of bushv ioning off the shocks caused by the unevenilies ofthe road. b p

" Theinvention is illustrated on the drawings, in Whichy y Figure l shows a perpendicular cross-sec tion through one of its -air-cushions. Figs. 2 and 3 show a bicycle; Fig. 4, a carriage. Figs. 5 and 6 show a railroad-car, each being provided with a set of these air-cushions.

.As shown in Fig.,1, the cushion is in the form of a cylinder, with metallic cylinderheads marked a' a2, to which is .cemented a corrugated rubber `mantle b, which rubber mantle is permanently and air-tightly fastened to thecylinder-heads through the Wire .bands c c, the metallic bands d d encircling the rubber mantle at the grooves. The manufacture of this cylinder requires the use of a sectional extractable core andan outer mold The metallic stiftenwidtli under thev pressure of the compressed ain-which therefore exerts all its force of ex'- panion in raising the load on the cylinderheaV Figs. 2 and show a bic'y'cle with solid tires provided with a set Of tnese air-cushions, gli* ing` to the rider' the full cushionineffect of the pneumaticl tire without the many drawbacks` of the latter.

Fig. 4 shows a carriage supplied witlif e. number of these aircushions in tbe place of vits unavoidable escape 'of air througlr the pores of the rubber to the smallest possible size, thus causing` it to lrcld its air charge much longer, and it gives a greater cushion ing eeot than thepneumatic tlre,as the reach between its extreme points o compression and expansion is much Wider than that of the pneumatic tire. 1 I i I therefore claimas new and desire to se cure by Letters l?atentlln a wheeled vehicle, aiwcusliious in the `form of 'air-cylinders with corrugated rubber xuantl'es, which. are fastened to metallic cylinderdreads through rings of wire winding and with metallic rings'enoircling the grooves of the rubber mantle.

. RlCIIARD ARONSTEN.

Witnesses:

HERMANN LEON, FRANK A. LEON. 

